Look left and right before you cross the road.

左右看一看，然后再过马路。

The editor will mark the validation errors with red marks on the left and right sides, and add a red wavy underline to the invalid syntax.

编辑器会左右两侧用红色标记标明验证错误，并给无效的语法加一条红色波浪型的下划线。

Greater demands were being placed on the police by growing violence and left and right-wing extremism.

不断增加的暴行和左翼右翼极端主义使得需要更多警力。

If you're in some battle, or rather, your troop is in some battle, and people are being killed left and right.

如果你在某个战场上，或者说，你的军队在某个战场上，周围的人被杀死。

he can use his left and right foot;

他的左脚和右脚都很好使。